Sort events by first day and start_time -
https://github.com/e-Luminate/eluminate_web/issues/189
Merge branch 'master' into sort_by_date_time
Merge pull request #195 from jogwen/sort_by_date_time

Sort Events by first day and then start_time. Fix found thanks to http://archlinux.me/dusty/2010/12/07/django-dont-use-distinct-and-order_by-across-relations/.